All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=914370

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=faa9553a9961f5cf328015a9a1a8436d2394326dc1f7fbade9cf0f55146528a6


Bot(s) for this bug's original alert(s):

mac-10_12_laptop_low_end-perf
mac-10_13_laptop_high_end-perf

system_health.memory_desktop - Benchmark documentation link:
  https://bit.ly/system-health-benchmarks

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/14ba72b6140000

📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/14ba72b6140000

Reland "Disable the new tab-loading animation" by pbos@chromium.org
https://chromium.googlesource.com/chromium/src/+/ad12d44124812f22484eb4d123e4a3b4aaac93b9
memory:chrome:all_processes:reported_by_chrome:skia:effective_size: 2.279e+07 → 3.889e+07 (+1.61e+07)

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions

Benchmark documentation link:
  https://bit.ly/system-health-benchmarks

 Issue 915853  has been merged into this issue.

My change reverts an experiment that never shipped to stable, I don't think there's anything actionable here.